I found myself in need of a SAS expander card to accommodate my Z590 series motherboard that I am running an audio workstation with. Which only comes with 6 HDD Bays.

I am not going to RAID. I need 6 (more) ports. They should support at least 8 TB drives.

But most of the cards I found Googling are either: x1, x2, x4, or Lanes are not mentioned at all.

And then there is 12Gb/s versus 6Gb/s cards...

I am perplexed about which specs I should chase. Which would be good enough? Obviously, I'd like a fast and reliable card.

So help on the subject and also maybe some specific card suggestions would be appreciated.